Flush-tank valve



' 1,637,592 Aug. 2, 1927. J. c' RYAN FLUSH TANK VALVE Filed oct. 11. 1926 1N VEN TOR MMM/M.

Bynmm.

ATTORNEY Fig. 1..

Patented Aug. 2, 1927.

^ UNITED STATES? PATENT OFFICE- JAMES o. RYAN, OF KANSASy CITY, MISSOURI, rASsIerNoift To Ross MANUFACTURING COMPANY, or KANSAS CITY, MISSOURI, A CORPORATIONOF MISSOURI.

- FLUSH-TANKl VALVE.

Application filed Octoberll, 19526.y Serial No. 140,785.

My inventiony rrelates to flush tank valves and more particularly to apfdevice ot that character whereby water is," 'furnished to,`

thetank under control of a float.

Valves of this type must be relatively to provide a free working valve with means or preventingl leakage through the uppery end of rthe'valve when the valve is kopen or, in any event, leakage in Such volume and un der such pressure as to'discharge from the tank when the cover is removed. n

In accomplishing this Object I have proiierred forms of'which are illustrated inthe accompanying drawings, wherein:

Fig. 1 is an elevational view, partly'iir longitudinal section, of a valve embodying my improvements. y

Fig. 2 is a perspective view of parts of the valve and its coi'nple'mentaryy elements in disassembled relation. i

Fig. 8 is across section on'y the line 3 k3,

yReferring more in detail to the drawings: 1 designates a stand-pipe which may be located in a flushtank (not shown) and comprisesathreaded nipple 2 anda shoulder .3. Threaded onto the nipple 2 is a coupling et having restricted outlet 5 and a valve seat 6 at the end of the outlet, the coupling having exteriorv threads 7 'out wardly of a shoulder 8. n

Threaded onto the coupling 4 is a liousing 9 having a downwardly opening discharge nozzle` 10 and having a` laterally opening slot 11. Slidably mounted within the housing is a cylindrical valve member y12 provided with an annular groove 13 ries a float 19 so that when the level of the water in the tank is lowered, the operating head will be rocked to lift the` valve member, and when the level rises7 the valvek memberfwill'be lowered, thereby providing ior opening and `closing the valve automatically iu the ordinary manner7 the inner end of the valve member carrying acompressible facing 20 for Sealing the Supply outlet when the valve is Seated. n

Located in the `periphery of` ther valve member between the said` head seating groove 13 and the seat end of the cylinder is a plurality oit unconnected annular grooves 21 forming chambers into which leakage about the valve meinberis interrupted at ystepped intervals between the outlet from the stand-pipe and the head seating groove,

and located within thecylinder `at the opposite side ot the head seating groove is an annular groove Q2 serving as an interrupter ttor leakage escaping through the head seating groove.

` On the outer end ot the valve member is a boss 23 having an undercut groove 24 toiiiiimg a handle flange 25 whereby the valve member may be grasped through the end o'li thehousing and serving asa stop for limiting outward movement of the valve member.

The outer end of the housing is provided rwith a sc re'w cap QG having an inwardly eX- tendcd pin 27 engageable b v the boss on the Lvalve member to limit movement of the valve member above stated, the top of the cap being preferably provided with apertures 28 through which spacing between the y sure, The' water into the valve housing through the restricted outlet from the stand'- pipe under suihcient pressure to be forced rbetween the relatively loose litting valve and the wall oit the housing. It the valve should happen to be scored or the fitting suiiiciently loose,y a volume of water will be passed between the. valve member and the housing sothat, ii? no preventative means were provided, a jet `might pass out through the housing causing inconvenience and possibly damage,

lVith the valve member provided with the Y stobpped at Athe first groove, it passes into the series of disconnected grooves constituting the feature of my invention, .such leakage passing the inner end of the valve will ente- 'the first groove and spread therein losin. y,its initial` force. It the leakage is not second and is again Vinterrupted so that, should it eventually reach the` operating head groove, its force has been dissipated vand the Water will merelyA flowl out from the groove through the slot in the housing and back to the tank. Should the Water be under eXtraordinary pressure and leakage yescape from the inner portion of the valve in a jetand thence between the outer part 'of the wvalve and vthe housing, the relatively small amount of Water Will be trapped in the outer part of the valve mem ber so that there is small likelihood of any 'of it reaching beyond the valve.

That I claim and desire toy secure by Letters Patent is: y

l. A lflush tank valve comprising a housing and valve seat, a cylindrical Yvalve slidable in the housing having an operating head seating groove, and having a series or' unconnected leakage collection grooves betweenv the'head seating groove and the seat end of the valve member and a leakage collection grooveV at the opposite Vside or the head seating groove, and an operating meniber having a head seated m the head seating Y groove.,

Y 2. 'In'combination with Aa' stand pipe, a valve lseat on the stand pipe, a housing enclosing the valve seat and having an operating head slot, a` cylindrical valve member having a peripheral groove opening Vto the housing slot yand an operating lever pivoted to the housing having a head extended having a peripheral groove opening to vthe housing slot andan operating klever pivoted to the housing having a head extended.

through said slot and seated in the peripheral groove, the valve member having a series of unconnected leakage collection grooves between said peripheral groove and the seat end of the valve member and a leakage collection groove at the opposite end of said peripheral groove.

l. ln combination with a stand pipe, a valve seat on the stand pipe, a housing enclosing the valve seat and having an operating head slot, a cylindrical valve member having a peripheral groove opening to the housing slot, an operating lever pivoted to the housing having a head extended through said slot and seated in said peripheralV groove, the valve member having' a series of unconnected leakage collection grooves between said peripheral groove and the seat end oi' the valve member, and a leakage collection groove at the opposite end et said peripheral groove, the valve member also having an undercut boss on its outer end, and an adjustable cap on the housing having a stop pin projected into the housing for engagement by said boss.

In testimony whereof affix my signature.

Janes o. RYAN. 

